Question

Which of the following minerals is present in coal?
(a) Hydrogen
(b) Oxygen
(c) Sulphur
(d) All of these

Answer 1

The minerals which are present in coal are d) All of these.

• Coal is a complex natural resource which is made from a number of minerals.
• The most common minerals which can be found in coal are  illite clay, pyrite, quartz, and calcite.
• The minerals in coal are made up from oxygen, hydrogen, aluminum, silicon, iron, sulfur, and calcium.
• Hence, all of these is the correct option.

Answer 2

d) All of these minerals are present in coal.

• Hydrogen, Oxygen, and Sulphur are present in coal.
• Coal is a sedimentary deposit composed predominantly of carbon that is readily combustible.
• Coal's other constituents include hydrogen, oxygen, nitrogen, ash, and sulfur.
• Some of the undesirable chemical constituents include chlorine and sodium.

• Coal is classified into four main types, or ranks: anthracite, bituminous, subbituminous, and lignite.